John Irvin Gregg

John Irvin Gregg (19 July 1826-6 January 1892) was a Union Army Major-General during the American Civil War.

Biography
John Irvin Gregg was born in Bellefonte, Pennsylvania in 1826, the grandson of US Senator Andrew Gregg and a cousin of David McMurtrie Gregg. He servd in the US Army during the Mexican-American War and worked in the iron industry before joining the Union Army at the start of the American Civil War in 1861, becoming colonel of the 5th Pennsylvania Reserve Regiment and later of the 16th Pennsylvania Cavalry Regiment. Gregg was wounded at the Second Battle of Deep Bottom in 1864, and he was promoted to Brigadier-General for bravery shown at the Battle of Trevilian Station. He was slightly wounded at the Battle of Sayler's Creek in the spring of 1865 and held prisoner for three days, and he was mustered out on 11 August after the war's end. He remained in the army after the war and led several expeditions against the Native Americans in the Mojave Desert, later subduing the Apache during the 1870s. He retired in 1879 and died in 1892.